Is Your Vehicle’s Transmission Acting Unpredictably?
There’s nothing more frustrating than a vehicle that won’t shift correctly. Whether you’re experiencing harsh, delayed shifts, getting stuck in a single gear, or seeing that dreaded Check Engine Light illuminate your dash, a faulty Transmission Control Module (TCM) is often the culprit. For owners of the Saturn SKY, Pontiac Solstice, and select Cadillac models, these symptoms can bring your driving enjoyment to a screeching halt. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating precise gear changes based on speed, engine load, and driver input. When it fails, the communication breaks down, leading to poor performance, reduced fuel economy, and potentially unsafe driving conditions.
This listing is for a direct-fit replacement Transmission Control Module, part number 24239785, which is the definitive solution to these common transmission woes. Unlike a generic part from a local store, this module is specifically prepared for your vehicle. We take your Vehicle Identification Number (VIN) and flash the module with the latest, most stable software updates directly from GM. This ensures that the part you receive is perfectly matched to your vehicle’s specific configuration, eliminating the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 2008 Pontiac Solstice GXP come into the shop with the classic complaint: “It’s shifting hard and the check engine light is on.” The customer was worried it was a major internal transmission failure. We pulled the codes and found a P0700 (Transmission Control System Malfunction) and several other solenoid-related codes. Instead of jumping to conclusions, we checked the basics first. Fluid level and condition were fine, and the wiring harness looked good. Knowing these platforms, we focused on the TCM, located on the left-hand frame rail. After swapping in a pre-programmed module matched to the car’s VIN, we cleared the codes and took it for a test drive. The shifts were immediately smooth and precise, just like it left the factory. The customer was thrilled to have their sports car back without a multi-thousand dollar transmission rebuild. It’s a perfect example of how the right electronic part can solve what seems like a catastrophic mechanical problem.
Common Symptoms of a Failing TCM
- ✔ Check Engine Light is on, often with transmission-specific codes like P0700.
- ✔ Harsh or erratic shifting between gears.
- ✔ The transmission seems to slip or hesitate during acceleration.
- ✔ Vehicle gets stuck in one gear (limp mode).
- ✔ Inability to shift into or out of a specific gear.
- ✔ Decreased fuel efficiency due to improper gear selection.
- ✔ Warning messages on the driver information center related to the transmission.
Why Choose Our Pre-Programmed Saturn SKY TCM?
The key to a successful and lasting repair is ensuring the replacement part communicates flawlessly with your vehicle’s other systems. Our professional VIN programming service makes this a simple, plug-and-play process for you. When you order this Saturn SKY TCM, you are not just getting a part; you are getting a complete solution. We handle the complex flashing process, loading the correct GM-certified software and calibrations onto the module before it ever leaves our facility. This means no special tools, no additional software, and no dealership visits are required for installation. Simply provide your VIN during or after checkout, and we’ll do the rest.
Full Vehicle Fitment List
This module is a direct replacement for part number 24239785 and is also compatible with part numbers 24235224 and YLMU. Please verify your part number and check the fitment list below to ensure compatibility.
- Cadillac CTS: 2010 (Transfer Case; Located RH dash, ID 2423522, YLMU, or 24239785)
- Cadillac SRX: 2007-2009 (Transmission; Located RH front engine compartment)
- Cadillac STS: 2007 (Transmission)
- Cadillac STS: 2010-2011 (Transfer Case; Located RH dash)
- Pontiac Solstice: 2006-2010 (Transmission; Located LH front frame rail)
- Saturn SKY: 2007-2010 (Transmission; Located LH front frame rail)
Don’t let a faulty module keep you off the road. Restore the crisp, reliable shifting your vehicle was designed to deliver. By installing our VIN-programmed TCM, you can confidently address your transmission issues and get back to enjoying the drive.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it to you. This makes the installation process straightforward, as the part is ready to be installed right out of the box.
What is a TCM and what does it do?
A TCM, or Transmission Control Module, is a computer that controls your vehicle’s automatic transmission. It receives data from various sensors on the engine and transmission to calculate the optimal time to shift gears, ensuring smooth operation and efficiency.
Where is the TCM located on my 2008 Saturn SKY?
For the 2007-2010 Saturn SKY and 2006-2010 Pontiac Solstice, the Transmission Control Module is typically located on the driver’s side (LH) front frame rail in the engine bay.
Will this part fix my P0700 trouble code?
A P0700 code indicates a general fault within the transmission control system. While a failing TCM is a very common cause for this code on these vehicles, it is essential to have a proper diagnosis performed. This part is designed to correct issues caused by a faulty module.
What information do you need from me after I order?
After you place your order, you will need to provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number). This allows us to load the correct software and calibration files for your specific car, ensuring perfect compatibility.